A dual-mode solar spectral converter CaLaGa3S6O:Ce3+,Pr3+: UV-Vis-NIR luminescence properties and solar spectral converting mechanism
A dual-mode solar spectral converter CaLaGa3S6O:Ce3+,Pr3+: UV-Vis-NIR luminescence properties and solar spectral converting mechanism
复制标题
双模太阳光谱转换器CaLaGa3S6O:Ce3,Pr3:紫外-可见-近红外发光特性及太阳光谱转换机理
DOI:
10.1039/c1jm14942c
复制
发表时间:
2012-01
影响因子:
--
通讯作者:
Su, Qiang
中科院分区:
文献类型:
--
作者:
Zhang, Gongguo;Liu, Chunmeng;Wang, Jing;Kuang, Xiaojun;Su, Qiang
A promising dual-mode solar spectral converter CaLaGa3S6O:Ce3+,Pr3+ for Si solar cells has been successfully developed. The structure, photoluminescence excitation and emission spectra in the UV-Vis-NIR region, and the decay curves have been systematically investigated. The results show that CaLaGa3S6O:Ce3+,Pr3+ exhibits two distinct solar spectral converting behaviors, quantum cutting (QC) (3PJ = 0,1,2 → 1G4 → 3H4) and downshift (DS) processes (1D2 → 3FJ = 3,4), depending on different excited levels of Pr3+ and Ce3+. It can almost harvest UV-blue-red (250–625 nm) photons, greatly enhancing the utilization of solar spectrum especially in UV-Vis spectrum region, and convert into an intense broad NIR emission (930–1060 nm), perfectly matching the maximum spectral response of Si solar cells. We demonstrate that Ce3+/Pr3+ ions can form an efficient donor–acceptor pair, with high potential as full spectrum solar converter for Si solar cells, and Ce3+ ion can be an efficient sensitizer for harvesting UV photon and greatly enhancing the NIR emission of Pr3+ ion through efficient energy feeding by allowed 4f–5d absorption of Ce3+ ion with high oscillator strength. The NIR integrated emission intensity of CaLaGa3S6O:Ce3+,Pr3+ is 7.78 times as intense as that of a NIR quantum cutting phosphor Ca2BO3Cl:Ce3+,Tb3+,Yb3+ (CBC). We believe this new dual-mode solar spectral converter may open a new route to the design of advanced UV-Vis–NIR phosphors for Si based solar cell applications.
登录
查看更多内容
影响因子:
--
作者:
Qiuhong Zhang;Jing Wang;Gong-guo Zhang;Q. Su
通讯作者:
Qiuhong Zhang;Jing Wang;Gong-guo Zhang;Q. Su
DOI:
10.1002/zaac.19855311208
发表时间:
1985-12
期刊:
Zeitschrift für anorganische und allgemeine Chemie
影响因子:
--
作者:
C. Teske
通讯作者:
C. Teske
影响因子:
--
作者:
Peng, Mingying;Wondraczek, Lothar
通讯作者:
Wondraczek, Lothar
影响因子:
2.1
作者:
Liu, X.;Ye, S.;Qiu, J.
通讯作者:
Qiu, J.
影响因子:
--
作者:
Gao, Guojun;Reibstein, Sindy;Wondraczek, Lothar
通讯作者:
Wondraczek, Lothar